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It states per kg of cement. So 300ml for 6kg of cement in a 24kg batch. 3:1 is quite a strong mix, standard would be 5:1 which would reduce it to 4kg cement and 200ml additive. How long did you leave this to go off...? Also some other add-mixes state 1.5-2.5L per 50kg, so you can reduced it...

Also just be aware that stuff is 20% Nitric acid, its not particularly nice stuff to get on skin or in eyes

Just checking, you're making a batch of total weight 24kg? Sand and cement? Because at 3:1 that's 6kg of cement, so 300ml of additive, not 1200ml?

One last question Woody, I think I’ve seen you talk about this before. But if rebuilt, it’s currently a 9in wall downstairs and 4.5in upstairs, would you have to rebuild as cavity wall or meet modern insulation standards?

It’s a good point, I hadn’t considered timber. Not sure how you’d go about proving the loading though. It’s a double height bay with pitch roof above.

Thanks Woody, I’m assuming just building regs then? Cheers

Hi All, Looking for some advice on how to proceed. I have a 1930s semi with a three section bay window. This was originally supported by the structural wooden frames, and unfortunately was at one point bodged (arent they all) for unsupportive UPVC frames, causing a slight drop above and...

Hi Guys, Just looking for some advice on fitting new shower tray. One wall is plastered, the other tileboard on studs. The tray edges are slightly tapered towards the bottom meaning the top is slightly away from the wall. I have cut away the plaster and board to allow the tray to sit somewhat...

Sorry, when I say move I mean where the front door is. Buying a new composite front door to fit in the new opening. Not moving the old UPVC.

Hi, Currently looking to move my front door, as you can see from the picture the original door is set back giving an open porch under the house. It’ll be set back slightly in that opening, which has now been narrowed to suit a standards door width. Question is, does it need a plastic...

Sorry to resurrect such an old thread. But I’m considering adding a downstairs toilet where it’s not practical to connect to the existing soil pipe. The pipe run is the same as in your photo with the new drop into a rest bend mid run. The issue is the pipe runs slight to close to the wall to...

Hi, Probably a pretty basic question I’m over thinking but,... better to know. I’ve used taper edge plaster board on wall before, but never on ceilings, and need to overboard a ceiling soon. How do you deal with joining the non tapered edges of the boards? Eg the short edges? Or is it...